import java.util.Scanner;

class HowAreYou3{
    public static void main(String[] args){
        Scanner stdIn = new Scanner(System.in);
        int x=55;
        int i='a'+'b';
        int y=67;
        byte b=3;
        y=y+b;
        b=(byte) (b+2);//强制转换
        System.out.println("b的值是:"+b+"。");
        System.out.println("x的值是:" + x + "。");
        System.out.println("y的值是:" + y + "。");
        System.out.println("合计值:" + (x+y) + "。");
        System.out.println("平均值:" + (x+y)/2 + "。");
        System.out.println("Hello"+'j');
        System.out.println(i);

    }
}

